A group of 4 young people with various ESPer abilities are told that they are the new weapon created by Professor Tarson. In reality, they were all kidnapped and their memories erased. Together, they can control a new superweapon/robot: Dangaioh. This is the story of how each discovers his/her past while being pursued by the "Bunker"...a space-based criminal conglomerate. A typical giant-robot story with unusual characters.